Schubert Chokecherry

I have a client who hates the height of her Schubert Chokecherry and would have preferred a shrub in that location. If I cut down the tree will the suckers fulfill her desire for a shrub or will I kill it off entirely?

Actually, these can become quite invasive in some areas. Trimming it to the desired height would definitely yield the results that you are looking for. It is best to do any major pruning during dormancy, or at least when it is not actively growing.